Revert of Updating OTS repo from https://github.com/khaledhosny/ots.git

third_party/ots/src/cff_type2_charstring.h

Index: third_party/ots/src/cff_type2_charstring.h
diff --git a/third_party/ots/src/cff_type2_charstring.h b/third_party/ots/src/cff_type2_charstring.h
deleted file mode 100644
index 673234257bd57f454f1189333a9154351309e949..0000000000000000000000000000000000000000
--- a/third_party/ots/src/cff_type2_charstring.h
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef OTS_CFF_TYPE2_CHARSTRING_H_
-#define OTS_CFF_TYPE2_CHARSTRING_H_
-
-#include "cff.h"
-#include "ots.h"
-
-#include <map>
-#include <vector>
-
-namespace ots {
-
-// Validates all charstrings in |char_strings_index|. Charstring is a small
-// language for font hinting defined in Adobe Technical Note #5177.
-// http://www.adobe.com/devnet/font/pdfs/5177.Type2.pdf
-//
-// The validation will fail if one of the following conditions is met:
-//  1. The code uses more than 48 values of argument stack.
-//  2. The code uses deeply nested subroutine calls (more than 10 levels.)
-//  3. The code passes invalid number of operands to an operator.
-//  4. The code calls an undefined global or local subroutine.
-//  5. The code uses one of the following operators that are unlikely used in
-//     an ordinary fonts, and could be dangerous: random, put, get, index, roll.
-//
-// Arguments:
-//  global_subrs_index: Global subroutines which could be called by a charstring
-//                      in |char_strings_index|.
-//  fd_select: A map from glyph # to font #.
-//  local_subrs_per_font: A list of Local Subrs associated with FDArrays. Can be
-//                        empty.
-//  local_subrs: A Local Subrs associated with Top DICT. Can be NULL.
-//  cff_table: A buffer which contains actual byte code of charstring, global
-//             subroutines and local subroutines.
-bool ValidateType2CharStringIndex(
-    OpenTypeFile *file,
-    const CFFIndex &char_strings_index,
-    const CFFIndex &global_subrs_index,
-    const std::map<uint16_t, uint8_t> &fd_select,
-    const std::vector<CFFIndex *> &local_subrs_per_font,
-    const CFFIndex *local_subrs,
-    Buffer *cff_table);
-
-// The list of Operators. See Appendix. A in Adobe Technical Note #5177.
-enum Type2CharStringOperator {
-  kHStem = 1,
-  kVStem = 3,
-  kVMoveTo = 4,
-  kRLineTo = 5,
-  kHLineTo = 6,
-  kVLineTo = 7,
-  kRRCurveTo = 8,
-  kCallSubr = 10,
-  kReturn = 11,
-  kEndChar = 14,
-  kHStemHm = 18,
-  kHintMask = 19,
-  kCntrMask = 20,
-  kRMoveTo = 21,
-  kHMoveTo = 22,
-  kVStemHm = 23,
-  kRCurveLine = 24,
-  kRLineCurve = 25,
-  kVVCurveTo = 26,
-  kHHCurveTo = 27,
-  kCallGSubr = 29,
-  kVHCurveTo = 30,
-  kHVCurveTo = 31,
-  kDotSection = 12 << 8,
-  kAnd = (12 << 8) + 3,
-  kOr = (12 << 8) + 4,
-  kNot = (12 << 8) + 5,
-  kAbs = (12 << 8) + 9,
-  kAdd = (12 << 8) + 10,
-  kSub = (12 << 8) + 11,
-  kDiv = (12 << 8) + 12,
-  kNeg = (12 << 8) + 14,
-  kEq = (12 << 8) + 15,
-  kDrop = (12 << 8) + 18,
-  kPut = (12 << 8) + 20,
-  kGet = (12 << 8) + 21,
-  kIfElse = (12 << 8) + 22,
-  kRandom = (12 << 8) + 23,
-  kMul = (12 << 8) + 24,
-  kSqrt = (12 << 8) + 26,
-  kDup = (12 << 8) + 27,
-  kExch = (12 << 8) + 28,
-  kIndex = (12 << 8) + 29,
-  kRoll = (12 << 8) + 30,
-  kHFlex = (12 << 8) + 34,
-  kFlex = (12 << 8) + 35,
-  kHFlex1 = (12 << 8) + 36,
-  kFlex1 = (12 << 8) + 37,
-  // Operators that are undocumented, such as 'blend', will be rejected.
-};
-
-}  // namespace ots
-
-#endif  // OTS_CFF_TYPE2_CHARSTRING_H_